• 수산경영론집
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• 제36권1호
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• pp.81-101
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• 2005

This article is to estimate the fishing frequency function in Korean recreational fishery with respect to socio-economic characteristics of anglers. First, the study described the characteristics of the entire angler population on the view points of 9 socio-economic variables. And then, the study divided the total angler population into three groups of in-land, sea, and mixed angler populations in order to investigate the differences in their characteristics. The study could confirm the existence of differences in regions, size of regions, and educational levels between the in - land and the sea angler populations by testing heterogeneity in the frequency table. The fishing frequency function is estimated using Poisson regression model in order to accomodate the count data(non-negative discrete random variable) aspects of the fishing frequency. However, the model specification error is found due to overdispersion of data. The model exhibits the lack of goodness of fit. The negative binomial regression model is adopted to cure the overdispersion of the data as an alternative estimation methodology. Finally, the study can confirm overdispersion does not exist in the model any more and the goodness of fit improved significantly to the reasonable level. The results of estimation of fishing frequency population modeled by the negative binomial regression models are following. The three variables of region, sex, and education have effects on the decision making process of fishing frequency in the case of in-land recreation fishery. On the other hand, the three variables of sex, age, and marriage status do the same job in the case of sea angler population. Among the left-over variables, both income and use of Internet variables now affect on the process in mixed angler population. Finally, the results of whole angler population show that all of the previous variables are proven to be statistically significant due to the summation of data with all three sub-groups of angler population.

• 수산경영론집
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• 제41권2호
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• pp.45-60
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• 2010

The objective of this article was to estimate the market size of recreational fishing in Korea. Data were collected through sample surveys of 3,081 households nationwide in 2008. The number of anglers was directly estimated by applying weights expressed as the ratio of population to the sample. Yields and expenditures were estimated based on modules developed. On the basis of the results, a total of 6,524 thousand anglers caught an estimated 643,343 thousand fish, divided 65.2% on inland lake and 34.8% on saltwater. An angler caught about 98 fish on average in 2008. A typical angler went fishing 9.6 times, divided 8.4 times on inland lake and 5.5 times on sea. An annual expenditure of 5,233.6 billion won was estimated. The total was divided 2,851.4 billion won on inland lake(54.5%) and 2,382.2billion won on saltwater(45.5%). An average angler spent 802 thousand won a year. This study also estimated volumes by various types of fish.

• 수산해양교육연구
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• 제22권3호
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• pp.341-353
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• 2010

Authors investigated the species composition of fishes for about 13months in the boundary sea water between Busan and Tsushima. We caught 81 species, 1,603 individuals and 437.7kg in biomass. The first dominant species by seasons were common squid, angler, angler and Psenopsis anomala respectively. Angler was also the first dominant species in biomass for four seasons. Catch per unit effort (kg/hr) was the highest in winter and the lowest in summer. But there was a little difference in accordance with station compared with season. There was big difference by season in the diversity index, the evenness index and the dominant index. But there was little difference between above indexes. The total length of common squid was the tallest in autumn and winter, that of blackthroat seaperch was the tallest in autumn and the lowest in winter. But angler's total length was almost same all through the year.

• 수산해양교육연구
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• 제23권2호
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• pp.141-152
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• 2011

This study was investigated the species composition of demersal fishes by a bottom trawler GAYA, in order to be used basic data for resources management of fishery in the jointly controlled waters of the West sea. We caught 39 species, 5,532 individuals and 322.518kg in biomass. The number of species was the fewest of the jointly controlled waters of the East china sea and boundary zone between Busan and Tsushima. The first dominant species in individuals in summer was Oregonia gracilis, and in biomass was angler. But angler was the first dominant species in 7 stations of 12 stations. It was a peculiar phenomenon that cod which lives in a cold current was caught in the northern part of the West sea. In this connection it seems to be needs for oceanographic research. Catch per unit effort (kg/hr) of bottom trawl was the higher in northern part and in right line of all surveyed area respectively.

• 소성∙가공
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• 제27권4호
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• pp.222-226
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• 2018

Severe plastic deformation (SPD) is a promising method for drastically enhancing the mechanical properties of the materials by grain refinement of metallic materials. However, inhomogeneous deformation during the SPD process results in the inhomogeneous microstructure of the SPD-processed material. We manufactured cylindrical copper specimens of 42 mm in diameter with ultrafine grains (UFG) using an equal channel angular pressing (ECAP) to figure out the relationship between homogeneous microstructure and the number of the processing passes. Two specimens, which are ECAP-processed 4 times (4pass) and 6 times (6pass) each with Route Bc, are prepared for comparison of mechanical properties and microstructure. The results show that the mechanical properties of the two specimens (4pass and 6pass) are similar. Moreover, both the specimens show highly enhanced mechanical properties. The 4pass specimen, however, shows inhomogeneity in hardness distribution, while the 6pass specimen shows a homogeneous distribution. Microstructure analysis reveals that the 4pass specimen has an inhomogeneous microstructure with incompletely refined grain structure. This inhomogeneity of the 4pass specimen could be explained by the circumferential rotation during ECAP process.

• 한국동물학회지
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• 제33권3호
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• pp.303-309
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• 1990

대장균에서 진핵세포의 펩타이드 호르몬 전구체를 대량으로 생산할 목적으로 T7 overexpression system을 이용하여 angler 어류의 prepro-SRIF I 유전자와 T7 phage coat 단백질 S10 유전자를 결합시켜 일련의 융합유전자를 합성하였다. 이 융합유전자를 가지고 있는 숙주 대장균, BL21 DE3는 3가지 종류의 서로 다른 SRIF 관련 폴리펩타이드를 대량 합성하였다. 본 연구에서는 대량합성된 폴리펩타이드의 특성을 규명하였으며, 펩타이드 호르몬 전구체를 얻기 어려운 이종이에서의 대량발현의 중요성과 표적 펩타이드 호르몬인 SRIF의 적용성을 논의하였다.

• 수산경영론집
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• 제37권3호
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• pp.65-83
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• 2006

This study is to obtain the order of the sensitivity of importing marine products with regard to non - economic aspects of considerations under the free - trade. Three criteria are extracted considering various aspects of Korean fishery society. They are the socio - economic, resource - environmental, and policy - appropriateness criterion. The Analytic Hierachy Process(AHP) is used to obtain the estimates of weights among these criteria. First of all, the weights between economic and non - economic in the first hierachy of sensitivity criteria turn out to be 83.3% and 16.7%. Second, the weights among three criteria in the non - economic aspect, the second hierachy, are following that the socio - economic criterion is 19.6%, resource - environmental 31.1%, and policy - appropriateness 49.3% respectively. 47 selected fishes are evaluated based on these three non - economic criteria using 9- point scales. The over - all order of sensitivity is a croaker, hairtail, flatfish, sea breams, and so forth in descending order. The least sensitive fish turns out to be an angler. In addition to the over - all order, the sensitivity based on the three specific non - economic aspects is also investigated. The most sensitive fish in terms of the socio - economic criterion is an hairtail while the least one is a filefish. The most sensitive fish in terms of the resource - environmental criterion is an abalone while the least one is an angler. Finally, the most sensitive fish in terms of the policy - appropriateness is a mackerel while the least one is a small octopus.

• 수산해양기술연구
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• 제58권1호
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• pp.75-84
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• 2022

Since South Korea did not adopt the recreation fishing using right (coupon) system, there were no recreation fishing statistics. This study selected 480 fishing vessels (10.4%) of a total of 4,611 fishing vessels (as of December 2019) as a survey sample using stratified sampling. Unlike other research institutes that conducted surveys related to the amount of tide on a one-time, this survey was conducted for five months (from May to October 2020, except the month of August). The captain investigated about types of fish, size, weight, etc. to anglers. A difference from previous studies was that about 7.0 million angler population (fishing more than three times a week) had 19.4 kg of catch per person for a year while other studies showed about 25.5-52.0 kg, respectively. The total fisheries resource catch amount was analyzed to be about 95,000 tons in this study and 116,000-166,000 tons in other studies. So there was a difference of about 1.2 to 1.8 times. This study aims to lay the foundation for the development of the fishing industry by preparing accurate statistical data and securing reliable basic statistics related to the fishing industry. Also, it could be usefully used as basic policy data such as introduction of a fishing using right (coupon) system.

• 한국식품영양과학회지
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• 제31권6호
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• pp.1142-1149
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• 2002

본 연구는 부산 향토음식인 아귀찜의 표준조리방법과 영양성분분석을 행하였으며 그 결과는 다음과 같다. 1. $\ulcorner$자산어보$\lrcorner$에 아귀의 형태 및 식이방법에 대하여 적고 있으나 조리법은 기록되어 있지 않다. 예전에는 거름이나 사료용으로 쓰였으나 아귀찜의 붐이 형성된 80년대부터 고단백 식품으로 인정되면서 고급어종으로 부상되었다. 2. 표준조리방법은 요리서 및 부산아귀찜 전문점의 레시피에 근거하여 식재료의 종류 및 양,조리방법을 3차례의 실험조리 및 관능검사를 거쳐서 수정.보안하여 확정하였다. 3. 표준조리방법으고 조리된 부산아귀찜의 특징은 생아귀, 콩나물, 해물조미료, 맛국물, 전분, 미세한 고춧가루 등의 식재료와 볶음.찜이 병행되는 조리법, 화력의 강약 조절 등으로 독특한 감칠맛과 담백한 맛을 가지고 있다. 4. 아귀찜 100 g당 에너지는 89 kcal, 단백질 10.7 g, 지질 1.3 g, 당질 3.0 g, 식이섬유 2.5 g, 칼슘 167 mg, 철분 1.3 mg 이었다. 또 1인분(370 g)당 에너지는 329 kcal, 단백질 40 g, 지질 4.8 g, 당질 11.1 g, 식이섬유 9.6 g, 칼슘 167 mg, 철 4.8 mg으로 단백질, 철분함량이 높았다. 아미노산 조성에서는 감칠맛 성분을 가진 glutamic acid, aspartic acid 등의 산성 아미노산의 할량이 높았으며 맛에 영향을 주는 유리아미노산은 asparagine, glutamic acid, taurine의 함량이 높았다. 구성지방산으로는 oleic acid, linoleic acid, palmitic acid의 순서로 함량이 많았다. 아귀찜은 단백질과 불포화지방산의 함량이 높은 아귀와 콩나물 등 20여 종의 식품이 이용된 전통.향토음식으로 식이섬유의 양은 많고 열량은 낮아 저열량식 이고 다이어트식이며 또한 영양균형식이다. 이러한 맥락에서 아귀찝은 많은 전통.향토음식이 가지고 있는 생활습관질환의 예방에 호능이 있는 것으로 사료된다. 각 지역의 전통 향토음식의 발전은 우리음식문화발전의 기틀이 되고 있지만 점차 전통음식이 사라져가고 있는 이 때 부산의 전통향토음식인 아귀찝의 표준조리방법을 제공함과 동시에 일반영양소, 아미노산, 지방산 조성을 분석하여 그 자료를 제시하였다. 이 과학적.영양적 자료가 가정을 비롯한 전문점, 단체 급식시설에서 널리 활용되어 전통향토음식의 보급 및 우리음식의 전통성.향토성의 전수가 확대되길 기대하며 우리음식의 세계화에도 도움이 되길 바란다.

• 유체기계공업학회:학술대회논문집
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• 유체기계공업학회 2006년 제4회 한국유체공학학술대회 논문집
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• pp.557-560
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• 2006

The contact angle of a meniscus and a droplet can be controlled by using electrowetting phenomena. We investigated the dynamic aspect of electrowetting for an oil-electrolyte interface formed inside a closed glass tube. A step input voltage is applied and the subsequent motion of the interface is recorded by a high-speed camera. A kind of capillary instability is observed near the three-phase contact line, which could degrade the reliability of device utilizing electrowetting such as electrowetting liquid lens. The dynamics of interface motion for different input voltages and the fluid viscosities are analyzed and discussed based on the experimental results.